Improvement in blind-hinges



1 2Sheets'- -Sheet1.

c. G. SHEPARD. Improvement in Blind-Hinges.

ted Sep.24, 1872.

2 Sheets--Sheet 2.

'c. a. SHEPARD;

improvement in Blind-Hinges.

No. 131,571. 'Ptented Sep. 24,1872.

UNITED STATES PATENT OFFICE.

CHARLES G. SHEPARD, OF BUFFALO, NEW YORK.

IMPROVEMENT IN BLIND-HINGES.

. Specification forming part of Letters Patent No. 131,571, datedSeptember 24, 1872.

To all whom it may concern:

Be it known that I, CHARLES G. SHEPARD, of Buffalo, in the county ofErie and State of New York, have invented certain Improvements inBlind-Hinges, of which the following is a specification, reference beinghad to the accompanying drawing.

My invention consists of an improvement in the mode of constructing theI blind-hinges heretofore made by John D. Shepard, and on which he haspreviously filed applications for patents; and consists in the form,hereinafter claimed, which allows the screw-holes and pintle-eye to beboth cast at one operation.

Figure l is a perspective view of my improved hinge as applied for use.Fig. 2 is a front elevation of the same, a portion being shown insection. Fig. 3 represents the same as it is molded for casting toillustrate my improvement; and Fig. 4 is a top plan view of one partdetached. The hinges of John D. Shepard, as fully described in hisspecifications, were so constructed that they could be cast completewith the locking devices at the outer edges, and with the screw-holesformed therein. In those hinges it was, however, necessary to core the'eye in the act of casting that portion of the hinge containing thesame.

Now, the object of my invention is to so construct the hinge that whileit can be cast like his with the locking devices and screwholescomplete, it, can also have the eye formed without the use of a core,thus still further simplifying and cheapening their production.

To accomplish this, I construct the hinge as represented in the drawing.In this it will be observed that each part or leaf, A and B, is providedwith a laterally-projecting rib or flange, D and O, the rib 0 havingapintle, b, dependingfrom its under side, with a conical hub, a, whereit joins the rib, while the rib D is provided with an elongated eye,which is made correspondingly conical on its upper surface, asrepresented in Fig. 2, the longer axis of the eye being arranged in linewith the plane of the rib, so that when the conical portion of thepintle rests in theconical seat of the eye the smaller portion 1) of thepintle will rest about midway of the length of the eye. These ribs orflanges, O and D, as shown in the drawing, instead of being located nearthe center of their respective leaves, A and B, as in Shepards formerhinges, are located at the extreme lower end, by which means I amenabled to mold it as represented in Fig. 3, where it will be seen thatthe sand fills all the holes without any core and permits the pattern tobe drawn without difliculty, it being molded either side up. Asheretofore made, that portion of the leaf below the rib projected beyondthe vertical line when set in the mold and prevented it from beingmolded complete Without a core for the eye.

By this construction I obviate this difficulty, and am thus enabled toform the hinge complete by the simple act of casting, no other operationbeing required, exceptto smooth them in a tumbler.

The locking-shoulders are the same or similar to those on the formerhinge, and engage automatically as the blind is swung openr.

The elongated eye permits the shoulders to be unlocked by simply shovingthe blind edgewise in either direction, the conical portion a of thepintle riding upon its seat, and thereby raising the blind so as todisengage the lockingshoulders. Both the upper and lower hinges are tobe made alike.

- Having thus described my invention, what I claim is A blind-hinge,consisting of the leaves A and B each provided with thehorizontallyprojecting rib, located at the extremity of the leaves, therib D being provided with the conically-recessed elongated eye, and therib U with the conically-enlarged pintlea b, substantially as described,said arrangement allowing the screw-holes and pintleeye to be cast atone operation.

CHARLES G. SHEPARD.

Witnesses:

JOHN D. SHEPARD, MILES JOY.

